If you can build your deck with a majority, if not all your cards being historic spells, you will be able to gain value every turn with Rona, Disciple of Gix

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It means that this is a good one at pretty much any stage in the game, but especially against decks that like big expensive threats
This card is a solid midrange creature removal that may not be enough against aggressive or massive creature decks
Consign to Memory offers you a way to deal with the card and its effects, and it's best when your opponent taps out for that huge Eldrazi titan thatll leave them in a winning position
Such an effect can also disrupt any opponent who just tutored for a card or drew a bunch of extra cards while using Reliquary Tower